Infusion port safety non-injury puncture needle

Abstract

The invention provides an infusion port safety type no-damage puncture needle. The puncture needle comprises a puncture assembly, an infusion assembly and an air transmission assembly, the puncture assembly comprises a catheter seat, a puncture-proof seat, a needle tube seat and a puncture needle core, the front end of the catheter seat is fixedly connected with a soft catheter, two opposite butterfly wing handles are arranged on the outer wall of the catheter seat, and a needle core through hole is formed in the central axis of the puncture-proof seat; the front end of the puncture-proof seat is sleeved with the rear end of the catheter seat, a concave piece with the front edge connected with an elastic piece is clamped to the front portion of the puncture-proof seat, a limiting block is contained in the puncture-proof seat, a limiting hole opposite to the needle core through hole is formed in the limiting block, the front end of the puncture needle core is arranged in the catheter sheath, and the rear end of the puncture needle core is fixedly connected with the inner top of the needle tube seat; and the elastic piece is bent backwards to abut against the surface of the puncture needle core, the needle tube seat is sleeved on the outer wall of the puncture-proof seat, a protrusion is arranged on the surface of the puncture needle core close to the front end portion, and the infusion assembly and the gas transmission assembly are connected with the catheter seat. The flexible catheter can be used for infusion for multiple times through one-time puncture, the flexible catheter cannot fall off from a puncture point, and puncture injuries cannot be caused.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a safe non-injury puncture needle for an infusion port. Background technique [0002] The infusion port is a closed infusion device that can be repeatedly punctured and completely implanted in the human body. It is composed of liquid tank and suture hole. When the infusion port is in use, it is necessary to use the matching puncture needle to puncture into the injection seat, and then connect the infusion set for intravenous infusion of drugs. At present, when puncturing the infusion port, fix the injection seat with the thumb, index finger and middle finger of the non-dominant hand, arch the infusion port, and then hold the puncture needle from the thumb, index finger and middle finger of the non-dominant hand. The center pierces vertically through the piercing septum of the injection hub, such as a silicone septum, to the bottom of the reservoir of the injection hub. ...

AI Technical Summary

Problems solved by technology

[0004] Multiple punctures of the puncture septum by the puncture needle in the existing infusion port will affect the compactness of the puncture septum and may injure the medical staff, and the puncture needle made of stainless steel is easy to fall off from the puncture point, resulting in leakage of the liquid medicine. Due to the technical problem of necrosis of the patient's skin tissue caused by infiltration, the safety of infusion can not be well guaranteed. The present invention provides a safe non-damaging puncture needle for infusion port

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